srecord Timestamp(long date) implements Comparable<Timestamp> {
  *() { date = now(); }
  
  toString { ret formatLocalDateWithSeconds(date); }
  
  // Hmm. Should Timestamp(0) be equal to null? Question, questions...
  public int compareTo(Timestamp t) {
    ret t == null ? 1 : cmp(date, t.date);
  }
  
  Timestamp plus(double seconds) {
    ret Timestamp(date+toMS(seconds));
  }
}